The shipboard oil pollution emergency plan will be invalid after （）

During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.

The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）

Using a file without a handle may result in （）

The condensers located in various stages of a flash evaporator are cooled by（）

The treatment of the fuel oils involves storage, heating, filtering and（）

The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）

Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）